Gibson Explorer Guitar Center A guitar pickup is actually similar to an energetic mike coil. For many years, active microphones have been sent with the voice coil attached with the principal of the microphone's transformer, and perhaps not referenced to floor (‘floating'). The microphone's event is typically attached to the cable guard, that will be attached to the mike amplifier's ground (see Rane's website for more discussion).
By and large, dynamic microphones are very calm devices consequently of the combination of transformer isolation and balanced, floating indication lines throughout, along with protected, humbucking coils.
So why not guitars? Instruments are once overwhelmed by noise. Humbucking pickups are just a partial (though crucial!) solution. The most obvious option is to float the guitar collection to a healthy output, being a microphone. The same thought was printed this 2001 patent request like this Gibson Explorer Guitar Center?